Solid-surface fluorescence of hydrophilic dyes on different polysaccharide matrices

Cellulose diacetate (CDA) fibers and films, fibers of chitosan (CTS) of polycationic and polybasic forms were examined as matrices for solid-surface fluorescence (SSF) of hydrophilic fluorescent dyes¾eosin Y and trypaflavine. CDA film and fiber ability to absorb trypaflavine was proved. The extracti...

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Bibliographic Details
Published in:Oriental journal of chemistry 2014, Vol.30 (4), p.1557-1563
Main Authors: Rogacheva, Svetlana M, Strashko, Anna V, Gubina, Tamara I, Shipovskaya, Anna B, Volkova, Elena V, Shilova, Natalia A, Melnikov, Andrey G
Format: Article
Language:English
Subjects:
Cellulose
Cellulose diacetate
Cellulose fibers
Chemical sensors
Chitosan
Dyes
Fluorescence
Morphology
Organic chemistry
Polysaccharides
Sensors
Solid surfaces
Surfactants
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Summary:Cellulose diacetate (CDA) fibers and films, fibers of chitosan (CTS) of polycationic and polybasic forms were examined as matrices for solid-surface fluorescence (SSF) of hydrophilic fluorescent dyes¾eosin Y and trypaflavine. CDA film and fiber ability to absorb trypaflavine was proved. The extraction degree and SSF signal of trypaflavine was higher for CDA film than fiber. The polybasic CTS was shown to have the highest sorption capacity (R = 95.5%) relative to eosin Y and to be the best matrix for its SSF signal. The obtained results can be used in the design of chemical sensors based on SSF measurement.
ISSN:0970-020X
2231-5039
DOI:10.13005/ojc/300414